黑龙江省胜利水库冰盖生消规律

Freeze-up and Break-up of Ice Cover on the Shengli Reservoir, Heilongjiang Province

The freeze-up and break-up of ice cover on the reservoir is a popular natural phenomenon in cold region. Movement of the ice cover can damage the slope protection of the dam, causing losses in economics. Based on calculating and analyzing to the data of a decade observation on the ice cover formation and break-up on the shengli Reservoir, Heilongjiang Province, auther points out the characteristics of the ice cover movement and the distribution of peach-like pattern pressure field, and states the process of the ice thickening and vanishing, as well as the regularity of the ice cover activity. It can provide the scientific basis for the Shengli Reservoir engineering design and its ice-hazard protection.